Meningitis can cause fever. The main clinical manifestations of meningitis are fever, headache, dizziness, nausea, vomiting, and in some patients, disorders of consciousness such as drowsiness, confusion, coma, and convulsions. In meningitis, cerebrospinal fluid examination is required to further clarify the cause of meningitis. After the cerebrospinal fluid examination, we can know what causes meningitis, such as viral, fungal, tuberculosis, and other causes of infection, so that we can provide targeted treatment when treating meningitis so that it may be cured. Otherwise, a small percentage of meningitis patients can progress very quickly and can become life-threatening.